Electrolytic tough pitch (ETP) and fire refined high conductivity (FRHC) copper samples were severely deformed at room temperature by equal channel angular pressing (ECAP) up to 16 passes (ε ~ 1 per pass), following route Bc. The effect of the initial texture on the evolution of texture after the ECAP process for both materials was analyzed. The annealed materials present a marked anisotropy, with a texture controlled by the <110> fiber. According to the orientation distribution function (ODF), this initial behavior allows the presence of a strong C ({001} <110>) component after the first two ECAP passes in both coppers. However in the second pass the C component significantly increases in the FRHC copper, whereas the ETP copper presents a much more balanced behavior of the A1* (111)[<img border=0 width=17 height=12 id="_x0000_i1026" src="../../../../../img/revistas/mr/2013nahead/1707-12s01.jpg" align=absmiddle> 2]and A2* (111)[11 <img border=0 width=8 height=12 id="_x0000_i1027" src="../../../../../img/revistas/mr/2013nahead/1707-12s02.jpg" align=absmiddle>]components. The textures obtained for both coppers after each ECAP pass exhibit predominant orientations with continuous distributions along the orientation fiber with simple shear texture.
Equal channel angular pressing (ECAP); EBSD; copper; texture
